Brass Insignia Screw Back Nut Hat Device Backing
Small Brass insignia Screw Back Nut 1/2 inch 40 thread per inch
1/2 inch=13mm wide thread per inch x 3mm thick
Made to fit most standard US military hat and collar screw back insignia for all branches of the military made during pre 1939 WWII to present day.
Product Code: EB 1
Brand: 911 Emergency Supply
Product Condition: New
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